Bug ID: JDK-8244675 assert(IncrementalInline || (_late_inlines.length() == 0 && !has_mh_late

Type: Bug
Component: hotspot
Sub-Component: compiler
Affected Version: 16,17,18,repo-panama

Priority: P3
Status: Resolved
Resolution: Fixed

Submitted: 2020-05-09
Updated: 2021-09-29
Resolved: 2021-09-03

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JDK 17	JDK 18
17.0.2Fixed	18 b14Fixed

Almost all vector tests (jdk/incubator/vector/) crashed with
#  Internal Error (/home/katya/work/JavaSE/Hotspot/ws/jdk.panama-dev/open/src/hotspot/share/opto/compile.cpp:696), pid=8135, tid=8164
#  assert(IncrementalInline || (_late_inlines.length() == 0 && !has_mh_late_inlines())) failed: incremental inlining is off
#

when running with "-XX:-Inline" with fastdebug build.

Perhaps it is not very reasonable flag for Vector API (used to get more precise code coverage) but
it still should not result in crash.

Fix request (17u): The bug leads to an assert in C2 (regression in JDK 16). The fix is low risk and has been tested in the JDK 18 for a while and with tier1-3 in JDK 17u. The patch applies cleanly.
28-09-2021
Changeset: 28ba78e6 Author: Vladimir Ivanov <vlivanov@openjdk.org> Date: 2021-09-03 12:05:00 +0000 URL: https://git.openjdk.java.net/jdk/commit/28ba78e64721529fd764a7c09a7142a96c245f05
03-09-2021
It seems like Compile::should_delay_vector_inlining() or its caller should take the value of IncrementalInline into account.
29-07-2021
ILW = vector tests, debug builds only, don't use -XX:-Inline = MMM = P3
29-07-2021
To reproduce try to run for example: > jtreg -jdk:fastdebugBuild -vmoptions:-XX:-Inline -dir:open/test/jdk jdk/incubator/vector/Short64VectorTests.java
10-05-2020

Duplicate :	JDK-8271438 - Crash with -XX:-Inline on basic vector API case (debug builds)
Relates :	JDK-8257211 - C2: Enable call devirtualization during post-parse phase